so we'll need two of these and two emitters, then the primary RMR chamber houses our scope lens; and the additional space in the back can house brightnesss and illumination controls but that's it; as I said focusing will need to be done manually and those screens need to be filmed with privacy gorilla glass; then the entire optic needs a thin jellyfish cover; ensure all of them have it sort of like cerakote finishing a stainless slide... it will last